Drilling rigs require constant cooling due to danger of overheating.
Bentonite is a type of clay that is used in industrial drilling. Bentonite performs several purposes by cooling down the bit, tubing and the rig itself while also stabilizing the drill hole. Bentonite stabilizes the holes by filing in the cracks along the hole and preventing the cooling mud from leaking out. By preventing the mud from leaking, it then provides pressure on the drill tube to keep it centered and on target. It also helps float some the heavier rock debris so that it can be shoved to the side of the drill.
Instructions
1. Add bentonite to your mud tank along with water. The exact mixture of water and bentonite depends upon what drill bit being used and what is being drilled. Consult a professional drill rig operator, a geologist or a mechanical engineer for the proper mixture as well as whether you need any stabilizing additives.
2. Engage the mud pump on recirculate to push the mud through the hole; the pressure needed depends on the size of the drill rig. Engage the water pump to keep the mixture liquid, consult a professional drill rig operator for the proper settings as you will need to vary the liquidity depending upon drill bit type, depth of drill and material drilling into.
3. Order the drill rig crew to start drilling. Monitor the levels of bentonite mud in the mud tank while doing so. Have a professional drill rig operator on hand to inform you as to the correct mixture levels. As the drill bit descends, the type of soil may change from dirt to rock. The harder the ground is, the more water you may need to keep the drill cool. Consult a geologist for the proper settings and advice on stabilizing additives.